Double offset butterfly valves are widely utilized in water supply or drainage system, offering optimal performance under normal temperature and low-pressure conditions.
| No. | Part | Material |
| 1 | Valve Body | WCB, CF8, CF8M, CF3M |
| 2 | Valve Disc | CF8, CF8M, CF3M |
| 3 | Insert | 20#, 304, 316, 316L |
| 4 | O-ring | PTFE, PPL, RPTFE |
| 5 | Gland | CF8 |
| 6 | Retaining ring | 316 |
| 7 | Stem | 17-4PH |
| 8 | Pin | 17-4PH |
| 9 | Packing | PTFE, PPL, RPTFE |
| 10 | Packing Washer | 316 |
| 11 | Spacer Ring | 316 |
| 12 | Upper Stem Sleeve | 316 RPTFE |
| 13 | Lower Stem Sleeve | 316 RPTFE |
| 14 | Bearing | Gr Bearing Steel |
| 15 | Gasket | PTFE, PPL, RPTFE |
| 16 | End Cover | WCB, CF8, CF8M |
| 17 | End Cover Bolt | WCB, CF8 |
| 18 | Stud | GB3098.18.8 |
| 19 | Spring Washer | WCB, 316 |
| 20 | Hex Nut | GB3098.18.8 |
| 21 | Threaded Insert | WCB, CF8 |
| Item | Standard | Optional Standard |
| Design & Manufacture | GB12238-2008 | ISO/DIN10631-91, AP1598 |
| Face to Face Dimension | GB12221-2005 | ISO5752-88 |
| Flange Connection | GB9113.1-2000, GB/T9119-2010 | ANSI.B16.5, ISO7005, ISB2238 |
| Valve Test | GB/T13927-2022 | ISO/DIN 5208-87 |
| Valve Mark | GB12220-89 | ISO/DIN 5209-87 |
Our elastomeric seal technology focuses on soft sealing, significantly minimizing the extrusion and scratching between the valve disc and O-ring, thereby extending service life.
The double-offset butterfly valve features a straightforward design with just two eccentric angles, making it easily operable via a standard mounting interface.
Our double-offset butterfly valves cater to multiple standards and can be tailored to meet specific requirements, offering a range of types for customized applications.
